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Titolo:
HEAT OF CHEMISORPTION OF 1-PROPANOL ON ALPHA-AL2O3 AT 25-200-DEGREES-C - A MICROCALORIMETRIC STUDY
Autore:
ROSSI PF; BASSOLI M; OLIVERI G; GUZZO F;
Indirizzi:
UNIV GENOA,FAC INGN,CNR,IST CHIM,FIERA DEL MARE,PIAZZALE JF KENNEDY,PAD D I-16129 GENOA ITALY
Titolo Testata:
Journal of thermal analysis
fascicolo: 6, volume: 41, anno: 1994,
pagine: 1227 - 1235
SICI:
0368-4466(1994)41:6<1227:HOCO1O>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
ADSORPTION; ALUMINA; TEMPERATURE; METHANOL;
Keywords:
ADSORPTION OF ALCOHOLS ON METAL OXIDE SURFACES; MICROCALORIMETRY; THERMOKINETIC INVESTIGATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
8
Recensione:
Indirizzi per estratti:
Citazione:
P.F. Rossi et al., "HEAT OF CHEMISORPTION OF 1-PROPANOL ON ALPHA-AL2O3 AT 25-200-DEGREES-C - A MICROCALORIMETRIC STUDY", Journal of thermal analysis, 41(6), 1994, pp. 1227-1235

Abstract

We have studied by means of differential microcalorimetry the adsorption process of 1-propanol on alpha-Al2O3 at the temperatures of 25, 50, 100, 150 and 200-degrees-C, respectively. Both amounts of adsorbed alcohol and heats released decrease as the temperature of adsorption increases. At very low coverage, the high value of differential heat shows a strong irreversible chemisorption on active sites (Lewis acid sites) (qdiff > 200 kJ.mol-1). Moreover, we carried out some thermokinetic investigations on heat emission peaks at different coverage degree (different equilibrium pressure of 1-propanol vapour as a function of time) and at different temperatures of adsorption, at same coverage.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/07/20 alle ore 15:59:09